*,
::before,
::after{
	/*选择所有的标签*/
	margin: 0;
	padding: 0;
	/*清除移动端点击高亮效果*/
	-webkit-tap-highlight-color:transparent;
	/*设置元素的宽度width从边框开始计算*/
	box-sizing:border-box;
}
body{
	font-size: 14px;
	font-family: "Microsoft YaHei",sans-serif;
	color: #333;
}
a{
	color: #333;
	text-decoration: none;
}
a:hover{
	text-decoration: none;
}
ul,ol{
	list-style: none;
}
input{
	border: none;
	outline: none;
	/*清除移动端默认的表单样式*/
	-webkit-appearance:none;
}
/*设置浮动*/
.f_left{
	float: left;
}
.f_right{
	float: right;
}
/*清除浮动*/
.clearfix::before,
.clearfix::after{
	/*占位置，不显示*/
	content: "";
	height: 0;
	line-height: 0;
	display: block;
	visibility: hidden;
	clear: both;
}
/*项目里统一要用到的背景图*/
[class^="icon_"]{
	background: url("../images/sprites.png") no-repeat;
	background-size: 200px 200px;
}
/*添加具有10px的左右上下四个方向的外边距,方便使用*/
.m_l10{
	margin-left: 10px;
}
.m_r10{
	margin-right: 10px;
}
.m_t10{
	margin-top: 10px;
}
.m_b10{
	margin-bottom: 10px;
}
/*占宽度50%*/
.w_50{
	width: 50%;
	display: block;
}
.w_50>img{
	display: block;
	width: 100%;
}
.w_25{
	width: 25%;
	display: block;
}
.w_25>img{
	width: 100%;
	display: block;
}
/*边框线*/
.b_right{
	border-right: 1px solid #e0e0e0;
}
.b_left{
	border-left: 1px solid #e0e0e0;
}
.b_top{
	border-top: 1px solid #e0e0e0;
}
.b_bottom{
	border-bottom: 1px solid #e0e0e0;
}